24 EXPERIMENT STATION. [Jan. 



asparagus, rhubarb, rasj)berries, blackberries, mixed hay and 

 potatoes. The sulfate of potash gives the larger crops in the 

 case of soj beans, rhubarb, raspberries, blackberries, pota- 

 toes, and (as the average of two experiments) for mixed hay. 

 The muriate gives the larger croj) of asparagus. 



III. — Experiment to determine the relative value of dif- 

 ferent potash salts for field crops. The salts under compari- 

 son were kainit, high-grade sulfate, low-grade sulfate, muri- 

 ate, nitrate, carbonate and silicate. The crop was potatoes. 

 The salts on the average of five trials for each rank as fol- 

 lows : muriate, low-grade sulfate, high-grade sulfate, nitrate, 

 carbonate, kainit and silicate. Where potash is not used 

 as a fertilizer, the vines appear to be far more susceptible to 

 early blight than on the other plots. 



IV. — Experiment to show the relative value in corn and 

 hay production of special corn fertilizers, as compared mth 

 a fertilizer mixture richer in potash. The crop of the past 

 season was mixed grass and clover. The, special corn fer- 

 tilizer gave the larger yield at the first cutting, the fertilizer 

 richer in potash the larger yield of rowen. This exj^eriment 

 has continued since 1891. Ten corn crops and six crops each 

 of hay and rowen have been produced. As the average of 

 the entire number of experiments, the special corn fertilizer 

 has given a slightly larger yield of grain and less stover than 

 the mixture of materials richer in potash. As the average 

 of six years' results, the mixture richer in potash has given 

 the larger crops both of hay and rowen. 



V. — Experiment to determine the relative value for pro- 

 duction of corn and mixed hay of manure alone, as compared 

 with a smaller application of manure and a moderate amount 

 of sulfate of potash. The crop of the past year was mixed 

 hay. The larger application of manure alone gave slightly 

 larger yields both at the first and second cuttings than the 

 combination of the smaller amount of manure and potash. 

 This experiment has continued sixteen years. Ten corn crops 

 and six crops each of hay and rowen have been harvested. 

 The average yields both of corn and hay have been greater 

 on the larger amount of manure alone, but not sufficiently 

 greater, estimating the manure to cost $5 per cord, to cover 



